نتایج جستجو برای: solution phase synthesis
تعداد نتایج: 1406841 فیلتر نتایج به سال:
Nucleic acid photodynamic molecular beacons (PMBs) are a class of activatable photosensitizers that increase singlet oxygen generation upon binding a specific target sequence. Normally, PMBs are functionalized with multiple solution-phase labeling and purification steps. Here, we make use of a flexible solid-phase approach for completely automated synthesis of PMBs. This enabled the creation of...
the molybdenum dicilicide is an intermetallic compound with two allotropies tetragonal ?-mosi2 and hexagonal ?-mosi2.the ?-mosi2 phase is established to 1900 ?c and ?-mosi2 phase from 1900 to 2050 ?c. this material has considerable properties that provide different applications in different industries such as air-space industry and gas turbines. the molybdenum synthesis can be down in various w...
Recent research on frequency synthesis concentrates mainly on specific wireless applications requiring high-purity gigahertz carriers in a narrow frequency band, with moderate resolution an tuning speed. A low power consumption is often a must for mobility, thus a PLL solution is indicated. The main benefits of direct digital synthesis (DDS), very wide band operation with millihertz resolution,...
The chemical approaches to the synthesis of peptides and proteins by the azide coupling 2 have turned out to be one of the safest methods of avoiding racemization. The azide procedure has been widely used for the coupling of difficult amino acid residues such as His, Thr, Ser, Trp, etc., and also particularly for the condensation of peptide fragments using both the maximum and minimum protectio...
In this work, the different fuels (citric acid, glycine and urea) were used for solution combustion synthesis of CoFe2O4 powders. X-ray diffraction, Raman spectroscopy, electron microscopy and vibrating sample magnetometry techniques were employed for characterization of phase evolution, cation distribution, microstructure and magnetic properties of the as-combusted CoFe2O4 powders. Single phas...
The total synthesis of TMG-chitotriomycin using an automated electrochemical synthesizer for the assembly of carbohydrate building blocks is demonstrated. We have successfully prepared a precursor of TMG-chitotriomycin, which is a structurally-pure tetrasaccharide with typical protecting groups, through the methodology of automated electrochemical solution-phase synthesis developed by us. The s...
Synthesis of a new solid solution (Ta,Ti) 3 C 2 T x MXene from the quaternary AlC MAX phase system, with variable Ti : Ta ratios, has been demonstrated.
We present the results from our deep (16 12 hr) Westerbork Synthesis Radio Telescope (WSRT) observations of the approximately 7 deg2 Bootes Deep Field, centered at 14h32m05 975, 34 16047>5 (J2000.0). Our survey consists of 42 discrete pointings, with enough overlap to ensure a uniform sensitivity across the entire field, with a limiting sensitivity of 28 lJy (1 rms). The catalog contains 3172 d...
A rapid and convenient method for the synthesis of deoxyribooligonucleotides has been developed using the phosphotriester approach. The advantage of this methodology for work in solution was successfully demonstrated in synthesis of a number of DNA fragments up to 32-long. Adaptation of the presented method to solid-phase synthesis allows a pentadecamer to be assembled in 4-5 hours using dinucl...
The co-digestion of two problematic and available wastes, namely Organic Fraction Municipal Solid Waste (OFMSW) and biological sludge, was carried out in this work. Biochemical Methane Potential (BMP) tests are a useful tool for determining the best substrate and co-digestion configurations, however there are some methodologies destined to save costs and time from this process by using the theo...
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